Year 7 · Spring Second Half
Biology
3 lessons from 2 units.
Unit B2 · lesson 4 of 4
Movement: skeleton and muscles
Bone is not the dead scaffolding it looks like in the corner of a lab. It is living tissue that rebuilds itself around the forces you put through it, it makes your blood, and it is the only thing your muscles have to pull against.
Unit B3 · lessons 1 to 2 of 8
Everything you have ever eaten was taken apart and rebuilt into you. This unit is about what your body needs, what happens to food after you swallow it, and why a gut full of bacteria is a good thing.
- 04Biomechanics: forces in the bodyQuantitativeHolding a 2 kg dumbbell, your biceps pulls with about 160 newtons. Why is it working eight times harder than the weight it is holding?Open this lesson
- 01A balanced dietClassifySeven things your diet has to contain. You need about 300 g of one of them a day and 0.000001 g of another. Both are essential. What does “balanced” actually mean?Open this lesson
- 02Food testsInvestigationFour tests, four colour changes. Each one answers exactly one question — and three questions you will want to ask, none of them can answer.Open this lesson
Back to all three sciences this half term The whole KS3 Biology course